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react-native-nearby-api npm version

Getting started

$ yarn add react-native-nearby-api or $ npm install react-native-nearby-api --save

Mostly automatic installation

$ react-native link react-native-nearby-api

Manual installation

iOS

  • To utilize the Nearby SDK, NearbyMessages need to be linked to the project. Look to the example for Cocoapods usage.
    cd ios/
    pod init
    
  • Add the following pod to the Podfile in the project's target.
    pod 'NearbyMessages'
    
  • Then pod install to install dependencies.
  • Open the newly generated .xcworkspace.
  • In node_modules/react-native-nearby-api/ios, drag and drop RNNearbyApi.xcodeproj into your Libraries group.
  • In Build Phases > Link Binary with Libraries > Click (+) > Add libRNNearbyApi.a.
  • Build and run project on device.

Android

  1. Open up android/app/src/main/java/[...]/MainActivity.java
  • Add import com.badfeatures.nearby.RNNearbyApiPackage; to the imports at the top of the file
  • Add new RNNearbyApiPackage() to the list returned by the getPackages() method
  1. Append the following lines to android/settings.gradle:
    include ':react-native-nearby-api'
    project(':react-native-nearby-api').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-nearby-api/android')
  2. Insert the following lines inside the dependencies block in android/app/build.gradle:
      compile project(':react-native-nearby-api')

Usage

See the example app for more detail and code examples.

  • Retrieve your API Keys from the Google Console iOS | Android

  • Add the correct permissions to the AndroidManifest.

    <!-- Include if wish to use BLE -->
    <uses-permission android:name="android.permission.BLUETOOTH"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
    <!-- Include if wish to use audio -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
  • Add the Android API Key in the AndroidManifest .

    <meta-data
      android:name="com.google.android.nearby.messages.API_KEY"
      android:value="MY_API_KEY" />
  • The iOS API key will be supplied through the connect() method.

  • Add NSBluetoothPeripheralUsageDescription to the Info.plist

  • Add NSMicrophoneUsageDescription to the iOS project's Info.plist if using audio

import NearbyApi from "react-native-nearby-api";

const nearbyAPI = new NearbyAPI(true); // Use BLE only, no audio.
nearbyAPI.onConnected(message => {
  console.log(message);
});
nearbyAPI.onDisconnected(message => {
  console.log(message);
});
nearbyAPI.onFound(message => {
  console.log("Message Found!");
  console.log(message);
});
nearbyAPI.onLost(message => {
  console.log("Message Lost!");
  console.log(message);
});
// Android Only
nearbyAPI.onDistanceChanged((message, value) => {
  console.log("Distance Changed!");
  console.log(message, value);
});
// Android Only
nearbyAPI.onBLESignalChanged((message, value) => {
  console.log("BLE Signal Changed!");
  console.log(message, value);
})
nearbyAPI.onPublishSuccess(message => {
  console.log(message);
});
nearbyAPI.onPublishFailed(message => {
  console.log(message);
});
nearbyAPI.onSubscribeSuccess(() => {});
nearbyAPI.onSubscribeFailed(() => {});

// To connect from Google API Client
nearbyAPI.connect(API_KEY);

// To check if the nearby API is connected.
nearbyAPI.isConnected((connected, error) => {
  console.log(connected);
});

// To disconnect later
nearbyAPI.disconnect();

// To publish to nearby devices
nearbyAPI.publish("Hello World!");

// To check if the nearby API is publishing.
nearbyAPI.isPublishing((publishing, error) => {
  console.log(publishing);
});

// To subscribe to nearby devices broadcasting
nearbyAPI.subscribe();

// To check if the nearby API is subscribing.
nearbyAPI.isSubscribing((subscribing, error) => {
  console.log(subscribing);
});

// To unpublish
nearbyAPI.unpublish();

// To unsubscribe
nearbyAPI.unsubscribe();

Running the Example

  • Install the dependencies in the root folder

    yarn

Generate an API Key from the Google Developer Console

  1. Go to the Google Developers Console.
  2. Create or select a project to register your application with.
  3. Click Continue to Enable the API.
  4. On the Credentials page, create a new API Key. (No key restrictions are needed for this example)
  5. Copy/Paste your key in example/index.js and in the example AndroidManifest.xml

Android

  • To run the example app, the packager must have the projectRoots reordered for the example/ directory. In another terminal window:

yarn start --projectRoots <FULL-PATH-TO-REPO>/react-native-nearby-api/example,<FULL-PATH-TO-REPO>/react-native-nearby-api

yarn run:android

adb reverse tcp:8081 tcp:8081

iOS

  • cd example ios/
  • bundle exec pod install
  • Open example.xcworkspace
  • Add your IP to AppDelegate.m
  jsCodeLocation = [NSURL URLWithString:@"http://<IP-ADDRESS>:8081/index.bundle?platform=ios&dev=true"];
  • In another terminal window: yarn start

  • Run on device

    NOTE: If you receive a duplicate symbols for architecture error through Xcode, this is a known issue. A work around is to run ./renameLogger.sh after node_modules have been installed and you've attempted to run in Xcode.